JP6414733B2 - Liquid storage container, outer container and liquid storage container combination, content liquid filling method, content liquid discharge method - Google Patents

Description

  The present invention relates to a liquid storage container, a combination of an outer container and a liquid storage container, and a content liquid filling method and a content liquid discharging method thereof, and particularly storage of fluid contents in the industrial chemical field, pharmaceutical and cosmetic raw material fields, etc. The present invention relates to a liquid storage container used by being housed in an outer container used for transportation, a combination of the outer container and the liquid storage container, a content liquid filling method, and a content liquid discharging method.

  Conventionally, in industrial chemicals, pharmaceuticals and cosmetics raw materials, etc., liquid storage containers that are placed inside exterior containers made of aluminum, steel, stainless steel, fiberboard, etc. for storage and transportation and contain fluid contents It is used.

  Such a liquid storage container can be reused by simply removing a used liquid storage container from the outer container and setting a new liquid storage container in the outer container. Compared to filling fluid contents in steel or other external containers directly, it has the advantage of eliminating the hassle of washing, etc., and is widely used as a container for industrial chemicals, pharmaceuticals and cosmetic raw materials .

  Moreover, what has the bag main body which has an inner bag and an outer bag, and the spout attached to the bag main body as a liquid storage container is known. The spout has a spout attachment part heat-sealed to the bag body, and a spout body protruding from the spout attachment part to the outside of the bag body. Such a liquid storage container is first folded compactly and inserted into the exterior container from the opening of the exterior container. Thereafter, nitrogen gas is supplied into the liquid storage container to inflate the liquid storage container inside the outer container. Next, the liquid container is filled with the content liquid.

JP 2008-7154 A

  As described above, the spout conventionally has a spout attachment portion heat-sealed to the bag body. In this case, the spout attachment portion should have a shape that does not damage the bag body during use. It has been.

In addition, when heat-sealing the spout mounting portion to the bag body, the bag main body and spout mounting portion will not be in the proper position or angle unless the spout mounting portion and the bag body are properly aligned at the specified position and angle. In some cases, heat sealing may not be performed. In this case, the bonding between the bag body and the spout attachment portion is insufficient, which may cause gaps or reduce the internal volume.
The present invention has been made in consideration of such points, and the liquid that can appropriately heat-seal the bag body and the spout mounting portion without causing the spout to damage the bag body during use. It is an object of the present invention to provide a storage container, a combination of an exterior container and a liquid storage container, a content liquid filling method, and a content liquid discharge method.

  The present invention includes a bag main body and a spout attached to the bag main body, the spout being attached to the bag main body, and an outer side of the bag main body from the spout attaching portion. A spout main body projecting to the center, and the spout mounting portion is formed of a cylindrical portion having a central portion and a thin portion which is provided on both sides of the central portion and is thinner than the thickness of the central portion. The liquid container is characterized in that a notch is formed in the lower end corner of the thin-walled portion, and each notch has a plurality of steps.

  In the present invention, a liquid distribution nozzle is provided through the spout, and the liquid distribution nozzle has a dome-shaped portion formed at a lower end thereof, or a nozzle cap having a dome-shaped portion attached to the lower end thereof. A plurality of openings may be formed in the dome-shaped portion.

  In the present invention, the height of each notch is 1/20 to 1/2 of the height of the spout attachment portion, and the width of each notch is one of the height of the spout attachment portion. It may be / 20 to 1/2.

  The present invention includes an exterior container having an opening and a liquid storage container disposed in the exterior container, and the liquid storage container is attached to the bag body, the bag body, and the opening of the exterior container. A spout attached to the bag main body, and a spout main body protruding outward from the spout main body from the spout mounting part. The spout attachment portion is formed of a cylindrical body having a central portion and a thin portion that is provided on both sides of the central portion and is thinner than the thickness of the central portion, and a notch is formed at the lower end corners of the thin portions on both sides. Each cutout is a combination of an outer container and a liquid storage container characterized by having a plurality of steps.

  The present invention includes an exterior container having an opening and a liquid storage container disposed in the exterior container, and the liquid storage container is attached to the bag body, the bag body, and the opening of the exterior container. A spout attached to the bag main body, and a spout main body protruding outward from the spout main body from the spout mounting part. The spout attachment portion is formed of a cylindrical body having a central portion and a thin portion that is provided on both sides of the central portion and is thinner than the thickness of the central portion, and a notch is formed at the lower end corners of the thin portions on both sides. Each notch has a plurality of stepped portions, a step of preparing an assembly of an outer container and a liquid storage container, a step of inflating the liquid storage container in the outer container, and the liquid And a step of filling the storage container with the content liquid. A content liquid filling method combined product of the outer container and the liquid container, characterized.

    The present invention includes an exterior container having an opening and a liquid storage container disposed in the exterior container, and the liquid storage container is attached to the bag body, the bag body, and the opening of the exterior container. A spout attached to the bag main body, and a spout main body protruding outward from the spout main body from the spout mounting part. The spout attachment portion is formed of a cylindrical body having a central portion and a thin portion that is provided on both sides of the central portion and is thinner than the thickness of the central portion, and a notch is formed at the lower end corners of the thin portions on both sides. Each notch has a plurality of steps, a step of preparing a combination of an outer container and a liquid storage container, a step of mounting a liquid distribution nozzle on the spout, and the liquid storage container A process for discharging the content liquid inside through the liquid distribution nozzle When a content liquid discharge method of union of the outer container and the liquid container, characterized in that it comprises a.

  As described above, according to the present invention, the spout can prevent the bag body from being damaged during use, and the bag body and the spout can be appropriately heat-sealed.

FIG. 1 is a plan view showing a liquid container according to the present invention. FIG. 2 is a perspective view showing a spout. Fig.3 (a) is a side view which shows a spout, FIG.3 (b) is the B section enlarged view of Fig.3 (a). FIG. 4 is a side view of the spout viewed from a direction 90 ° different from that in FIG. FIG. 5 is a top view showing the spout. FIG. 6 is a bottom view showing the spout. FIG. 7 is a side view showing the spout attached to the bag body. 8A and 8B are views showing a state in which the liquid storage container is inserted into the outer container. FIG. 9 is a cross-sectional view showing the layer structure of the bag body of the liquid storage container. 10A is a diagram showing the folded liquid storage container, FIG. 10B is an enlarged view of a portion B in FIG. 10A, and FIG. 10C is an enlarged view of a portion C in FIG. 10A. . FIG. 11 is a view showing a state in which the bag body of the liquid storage container is folded in a belly shape through a vertical folding line. FIG. 12 is a view showing a state in which the bag body of the liquid storage container is folded through an upper lateral folding curve and a lower lateral folding curve. FIG. 13 is a view showing a triangular bent portion formed by folding a bag body of a liquid storage container through a folding line.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

  1 is a plan view showing an embodiment of the liquid container according to the present invention, FIG. 2 is a perspective view of the spout, FIG. 3 (a) is a side view of the spout, and FIG. b) is an enlarged view of part B in FIG. 3 (a), FIG. 4 is a side view of the spout from a direction different from FIG. 3 (a) by 90 °, and FIG. 5 is a top view of the spout. FIG. 6 is a bottom view of the spout, and FIG. 7 is a side view of the spout attached to the bag body.

  In the liquid storage container 1 according to the present embodiment, the multiplex film 2 in which the outer bag 20 and the inner bag 21 are overlapped is overlapped so that the inner bags 21 face each other to make a total of four sheets, and the four sides are heat-sealed. The bag body 3 in which the heat seal portion 10 is formed, and the spout 40 disposed on the upper edge 3a of the bag body 3 and heat-sealed in advance between the inner bags 21 are provided.

  In this embodiment, the bag body 3 is obtained by laminating the multiple films 2 so that the inner bags 21 face each other, and heat-sealing the four sides to form the heat-seal portion 10, but this is not limitative. For example, after the multiple film 2 is folded so that the inner bags 21 face each other, the three outer peripheral sides that overlap each other may be heat-sealed. Moreover, you may form each inner edge part of the heat seal part 10 so that the inner edge may become arc shape. As a result, a structure in which the fluid content hardly remains at the corners is obtained. Moreover, the bag body does not necessarily need to be composed of multiple films, and the film structure of the package body 3 can be selected as appropriate according to the contents and quantity.

  Note that, as described above, the bag body 3 is obtained by stacking the two multiple films 2 and heat-sealing the periphery to form the heat seal portion 10. In this case, the bag body 3 has a rectangular shape having an upper edge 3a, a bottom edge 3b, and two side edges 3c, 3c. The upper edge 3a includes two upper edge heat seal portions 10a, the bottom edge 3b includes one bottom edge heat seal portion 10b, and each side edge 3c, 3c has one side edge heat seal portion 10c. The upper edge heat seal portion 10a, the bottom edge heat seal portion 10b, and the side edge heat seal portion 10c constitute the heat seal portion 10.

  Moreover, the upper edge 3a of the bag body 3 includes the two upper edge heat seal portions 10a as described above. In this way, by dividing the heat seal portion 10a of the upper edge 3a into two, for example, compared to a case where one heat seal portion having a width of two heat seal portions 10a is formed on the upper edge 3a, The upper edge 3a can be configured to be relatively soft.

  The spout 40 includes a spout attachment part 50 that is heat-sealed to the upper edge 3a of the bag body 3 and a spout body 41 that is connected to the spout attachment part 50 and protrudes outward from the bag body 3. A spout flange 42 is provided at the upper end of the spout main body 41. Further, as shown in FIG. 1, the spout 40 is heat-sealed between the inner bags 21 of the multiplex film 2 at the spout attachment portion 50.

  As shown in FIGS. 2 to 7, the spout mounting portion 50 of the spout 40 is an elliptic cylinder having a central portion 51 and thin portions 52 which are provided on both sides of the central portion 51 and are thinner than the thickness of the central portion 51. The body is flat and has a through hole 45 in the central portion 51. Usually, when the spout 40 is heat-sealed between the inner bags 21 of the multiplex film 2 at the spout mounting portion 50, there is a gap between two regions surrounded by the inner bag 21 and the end of the spout mounting portion 50. It is easy to become poorly sealed. In order to prevent this, thin portions 52 are provided on both sides, and a gap is prevented by melting the thin portions 52 during heat fusion.

  Further, the spout main body 41 of the spout 40 is formed of a cylindrical body having a substantially U-shaped cross section, and a spout flange 42 is provided at the upper peripheral edge. An opening 44 is formed in the bottom 43 of the spout main body 41. The opening 44 can ensure ventilation between the liquid storage container 1 and an outer container 5 to be described later. When the content liquid is pumped out during use, the liquid storage container 1 and the outer container 5 are opened through the opening 44. The gas can be sealed between the two and a pressure can be applied from the outside of the liquid storage container 1 to smoothly pump out the content liquid inside the liquid storage container 1.

  A spout flange 42 of the spout 40 is attached to an opening 5 a formed in the outer container 5, and the liquid storage container 1 is supported in the outer container 5.

  The spout 40 is preferably manufactured by an injection molding method. The resin used for this is not particularly limited as long as it is a resin that can be injection-molded. However, since the resin constituting the inner surface of the inner bag 21 of the multiplex film 2 is bonded by thermal fusion, Although it is necessary to select appropriately depending on the resin constituting the inner surface, high-density polyethylene that is rigid at high temperatures and hardly brittle at low temperatures is preferable.

  Incidentally, as shown in FIGS. 2 to 7, the thin portion 52 on both sides of the central portion 51 of the spout attachment portion 50 of the spout 40 has a notch 55 at the lower end corner. The notch portion 55 may be formed at the same time when the spout 40 is formed, or after molding a product having no notch 55 at the lower end corner of the spout attachment portion 50 of the spout 40, the spout attachment portion 50. You may form the notch part 55 in the lower end corner part. Each notch portion 55 has a plurality of, for example, 3 to 10 step portions 55a, and these step portions 55a function as positioning marks when the spout attachment portion 50 and the bag body 3 are heat-sealed.

That is, the spout attachment portion 50 of the spout 40 is heat-sealed to the upper edge 3a of the bag body 3 by heat sealing, but the step portion 55a of the notch 55 functions as a positioning mark during heat sealing, The step 55a of the spout 40 and the positioning mark 3A of the bag body 3 are positioned (see FIG. 7). By positioning the step portion 55a of the spout 40 and the positioning mark 3A of the bag body 3 in this way, the spout mounting portion 50 of the spout 40 can be heat-sealed at a correct position with respect to the bag body 3. Moreover, the bag main body 3 and the spout attachment part 50 can be heat-sealed with an appropriate angle. For this reason, the bag main body 3 and the spout attachment part 50 can be reliably heat-sealed and heat-sealed.
By the way, in FIG. 7, each step part 55a of the notch part 55 has the same up-down direction length as the same horizontal direction length. On the other hand, the positioning mark 3A of the bag body 3 also has a plurality of step marks 3s having the same lateral length and the same vertical length, and each step mark 3s of the positioning mark 3A and a notch corresponding thereto. The step portions 55a of the portion 55 also have the same lateral length and the same vertical length. For this reason, when positioning the spout attachment part 50 of the spout 40 with respect to the bag main body 3, the step part 55a of the notch part 55 and each step part mark 3s of the positioning mark 3A corresponding to this are compared. Then, by performing this comparison step by the number of stepped portions 55a of the cutout portion 55 (for example, the number of 3 to 10 steps), the bag body 3 is stretched in both the horizontal and vertical directions in FIG. It is possible to accurately and reliably position the spout attachment portion 50 of the spout 40.

  In addition, by forming a pair of notch parts 55 in the spout attachment part 50, damage to the bag body 3 caused by the spout attachment part 50 during use can be prevented.

  That is, when the notch portion 55 is not provided in the thin portion 52 of the spout attachment portion 50, the corner portion of the thin portion 52 of the spout attachment portion 50 is in the bag body 3 during storage, transportation, filling and discharging of the content liquid. If the bag body 3 is rubbed vigorously or pressed strongly against the twisted bag body 3, the bag body 3 may be damaged or damaged, and the content liquid may leak.

According to the present embodiment, by providing the notch portion 55 at the lower corners of the pair of thin portions 52 in the spout attachment portion 50, the vibration caused during storage and transportation, filling and discharging of the content liquid, etc. Even when the notch 55 is rubbed hard or pressed strongly against the bag body 3, the bag body 3 is prevented from being damaged because the stress is dispersed without concentrating on one point of the bag body 3. The
Next, the shape of the notch part 55 provided in the spout attachment part 50 is demonstrated.

As shown in FIGS. 3A and 3B, the width of the notch 55 (the width in the left-right direction in FIGS. 3A and 3B) is x, and the height of the notch 55 (FIGS. 3A and 3B). ) In the vertical direction) is y, and the height of the spout mounting part 50 (the vertical height in FIGS. 3A and 3B) is T.
1/20 × T <x <1/2 × T
1/20 × T <y <1/2 × T
It is preferable that

If x and y are smaller than 1/20 × T, the effect of preventing the bag body 3 from being damaged by the notch 55 cannot be expected. This is because the bag body 3 film is pulled downward by the liquid weight as a whole during vibration during storage and transportation, and when the content liquid is filled, so that the upper edge heat seal portion 10a and the vicinity of the notch portion 55 of the bag body 3 This is because when the film is brought into contact with the cutout portion 55 and stress is generated, the cutout portion 55 is generally close to a protrusion shape, and the stress relaxation effect by the plurality of step portions is reduced.
If x and y are larger than ½ × T, the heat-sealing area between the bag body 3 and the spout mounting portion 50 is reduced, and the bag main body 3 and the spout mounting portion 50 are reliably heat-sealed. In some cases, a gap may be formed between the bag body 3 and the spout attachment portion 50 without being able to be worn.
Next, the multiple film 2 constituting the bag body 3 will be described. In the present embodiment, the multiple film 2 is composed of a film constituting the outer bag 20 and a film constituting the inner bag 21.

  As shown in FIG. 9, a laminate of unstretched nylon (thickness 20 μm) 20 a / linear low density polyethylene (thickness 40 μm) 20 b can be used as the outer bag 20 of the bag body 3. As this, linear low density polyethylene (thickness 70 μm) can be used.

  In this case, since the outer bag 20 includes the unstretched nylon 20a, the degree of elongation of the outer bag 20 can be increased. For example, the outer bag 20 has a degree of elongation of 300% to 500%. Thus, since the outer bag 20 can have a high degree of elongation, the bag body 3 can be made soft as a whole, and the bag body 3 is inserted into the outer container 5 as will be described later. When the bag body 3 is inflated in the outer container by supplying nitrogen gas or clean dry air into the inside, the bag body 3 can be smoothly inflated.

  In addition, as a material of the bag main body 3, it is not restricted to what was mentioned above.

  For example, as the material of the inner bag 21, materials such as low density polyethylene, low density polyethylene and linear low density polyethylene can be used.

  As the material of the outer bag 20, a material having an elongation of 300% to 500%, such as low density polyethylene and linear low density polyethylene can be used.

  Next, the shape of the bag body 3 will be further described. As shown in FIGS. 10 to 13, the bag body 3 includes a plurality of bellows portions 12 formed by being folded in a bellows shape through a plurality of, for example, four longitudinal folding lines 11 extending in the vertical direction. (See FIGS. 10 and 11).

  In this case, each belly portion 12 of the bag body 3 has substantially the same width W. The spout 40 attached to the bag body 3 is arranged corresponding to the central belly portion 12 among the five belly portions 12.

  Further, after the bag body 3 is folded along the vertical folding line 11 to form the five bellows portions 12, the bag body 3 is connected via the upper lateral folding line 15 a and the lower lateral folding line 15 b. It is folded and the folding part 16 extended in a horizontal direction is formed (refer FIG. 12).

  Thereafter, the bag body 3 is bent along the folding line 13 to form a triangular bent portion 14 (see FIG. 10B).

  Thus, as shown in FIGS. 10A and 10B, the liquid storage container 1 is prepared in which the bag body 3 is formed with the plurality of bellows portions 12, the folding portions 16, and the triangular bent portions 14. The

  Next, as shown in FIGS. 8 (a) and 8 (b), the liquid storage container 1 is further folded in the vertical direction to be formed in an elongated shape in the vertical direction, and the liquid storage container 1 is formed in the outer container 5 from the opening 5a. Inserted into.

  Next, the spout 40 of the liquid storage container 1 is attached to the opening 5 a of the outer container 5. In this case, the spout flange 42 of the spout main body 41 of the spout 40 is engaged with the opening 5a of the outer container 5 (see FIG. 7).

  Next, an expansion jig (not shown) is attached to the spout 40 of the liquid storage container 1, and nitrogen gas or clean dry air is supplied into the liquid storage container 1 using the expansion jig, and the outer container 5. Inside, the bag body 3 of the liquid container 1 swells.

  Next, the effect | action which expands the liquid storage container 1 in the exterior container 5 is explained in full detail below.

  When the liquid storage container 1 is inserted into the outer container 5, first, a portion of the bag body 3 of the liquid storage container 1 below the folding part 16 falls due to its own weight, and the bag body 3 expands.

  Next, as described above, the bag body 3 is inflated by supplying nitrogen gas or clean dry air into the liquid storage container 1 using an inflating jig. Along with this, the bag body 3 folded in a belly shape through the longitudinal folding line 11 is expanded flat.

  In this case, since the triangular bent part 14 formed by bending through the folding line 13 is formed in the upper part of the bag body 3, the upper edge 3a of the bag body 3 is expanded when the bag body 3 expands. The corners are not caught by the opening 5a of the outer container 5, and thus the bag body 3 is prevented from being damaged.

  In addition, since the upper edge 3a of the bag body 3 includes the two upper edge heat seal portions 10a, the upper edge 3a can be configured to be softer than the case of including a wide heat seal portion, and the bag body 3 can be made more flexible. It can be smoothly expanded in the outer container 5. Furthermore, since the outer bag 20 of the bag body 3 has an elongation of 300% to 500%, the flexibility of the bag body 3 can be enhanced and the expansion action of the bag body 3 can be easily performed.

In this way, a combined body of the exterior container and the liquid storage container is obtained. Thereafter, the inflating jig is removed from the spout 40, a content liquid filling machine (not shown) is attached to the spout 40, and the content liquid is filled into the liquid storage container from the content liquid filling machine.
After the content liquid is filled into the liquid storage container, as shown in FIG. 7, the spout holding the liquid distribution nozzle 60 in the spout main body 41 of the spout 40 attached to the opening 5 a of the outer container 5. The upper member 70 is attached, and the liquid distribution nozzle 60 is inserted into the spout upper member 70.

The liquid distribution nozzle 60 inserted into the spout upper member 70 passes through the through hole 45 of the spout 40 and extends into the bag body 3 of the liquid storage container 1. The liquid distribution nozzle 60 has a large-diameter portion 63 formed at its upper end and a dome-shaped portion 61 formed at its lower end, and a plurality of apertures 62 are formed in the dome-shaped portion 61. The dome-shaped portion 61 has a hemispherical shape, and a plurality of apertures 62 are formed on the hemispherical surface. In the dome-shaped portion 61, the lower end of the liquid distribution nozzle 60 may be formed in a hemispherical shape, or a nozzle cap formed in a hemispherical shape may be attached to the lower end of the liquid distribution nozzle 60.
The liquid distribution nozzle 60 inserted into the spout upper member 70 is held by the spout upper member 70 with the large-diameter portion 63 provided at the upper end thereof engaged with the spout upper member 70.

In this manner, after the content liquid filling process into the liquid storage container 1 is completed, a cap (not shown) is attached to the opening 5 a of the outer container 5. At this time, a sealing member called a break seal (a dispenser (not shown) to be described later) is pierced by the tip of the dispenser between the cap and the spout upper member 70, and a thick film that can penetrate without dust generation. ) Intervenes. For this reason, the spout 40 and the liquid distribution nozzle 60 are sealed by this break seal and cap. In this way, the spout 40 and the large diameter portion 63 of the liquid distribution nozzle 60 are sealed. In this case, the cap engages with an external screw 5b provided on the outer periphery of the opening 5a. The cap includes a cap body and an upper cap, and the upper cap can be detached from the cap body.
When the content liquid in the liquid storage container 1 is discharged to the outside, the upper cap is removed from the cap body, and the large diameter portion 63 of the liquid distribution nozzle 60 is connected to the dispenser via the break seal and the cap body.
Next, nitrogen gas from a pressurized gas source (not shown) is supplied into the spout main body 41 of the spout 40 through the dispenser and the opening 71 a formed in the flange 71, and then the nitrogen gas is supplied from the opening 44. The space between the outer container 5 and the bag body 3 of the liquid storage container 1 enters. Next, the bag body 3 is pressed by nitrogen gas from the outside, and the content liquid in the bag body 3 enters the liquid distribution nozzle 60 through the opening 62 of the dome-shaped portion 61, and the content liquid in the liquid distribution nozzle 60 subsequently becomes large. It is discharged from the diameter part 63 to the dispenser side.
Here, the dispenser has a liquid flow path for discharging the liquid from the liquid storage container 1 at the center, and separately, a gas such as nitrogen gas is passed between the liquid storage container 1 and the outer container 5. It has a gas flow path for sending in between.

During this time, since the liquid distribution nozzle 60 has the dome-shaped portion 61 at the lower end thereof, when the content liquid in the bag body 3 is discharged outward from the large diameter portion 63 via the liquid distribution nozzle 60, Even if the lower end contacts the inner surface of the bag main body 3, the bag main body 3 is prevented from being damaged by the lower end of the liquid distribution nozzle 60.
Further, the content liquid in the bag body 3 is sucked into the liquid distribution nozzle 60 through a plurality of apertures 62 provided in the dome-shaped portion 61 and discharged from the large diameter portion 63 to the dispenser side. For this reason, compared with the case where a single opening is provided at the center of the lower end of the liquid distribution nozzle 60, the bag body 3 is in close contact with the liquid distribution nozzle 60 in the liquid distribution nozzle 60 even when the remaining amount of content liquid is reduced. It is prevented that the content liquid becomes difficult to flow.

DESCRIPTION OF SYMBOLS 1 Liquid container 3 Bag main body 3a Upper edge 3b Bottom edge 3c Side edge 5 Exterior container 5a Opening part 10 Heat seal part 20 Outer bag 21 Inner bag 40 Outlet 41 Outlet body 42 Outlet flange 50 Outlet attachment part 51 Center Portion 52 thin portion 55 notch portion 55a step portion 60 liquid distribution nozzle 61 dome shape portion 62 opening 70 spout upper member 71 flange 71a opening

Claims (6)

A bag body;
A spout attached to the bag body, wherein the spout includes a spout attachment part joined to the bag main body, and a spout body protruding from the spout attachment part to the outside of the bag body. Have
The spout attachment portion is formed of a cylindrical body having a central portion and a thin portion that is provided on both sides of the central portion and is thinner than the thickness of the central portion, and a notch is formed at the lower end corners of the thin portions on both sides. And
Each cut-out portion is to have a multiple of the step portion,
The liquid body, wherein the bag body corresponds to a plurality of step portions of the cutout portion, and a positioning mark for positioning the bag body and the spout is provided together with the plurality of step portions of the cutout portion. container. A liquid distribution nozzle is provided through the spout, the liquid distribution nozzle has a dome-shaped portion formed at the lower end thereof, or a nozzle cap having a dome-shaped portion is attached to the lower end thereof,
The liquid container according to claim 1, wherein a plurality of openings are formed in the dome-shaped portion.   The height of each notch is 1/20 to 1/2 of the height of the spout attachment portion, and the width of each notch is 1/20 to 1 of the height of the spout attachment portion. The liquid container according to claim 1 or 2, wherein the liquid container is / 2. An exterior container having an opening;
A liquid storage container disposed in the outer container,
The liquid storage container includes a bag body,
Attached to the bag body and provided with a spout attached to the opening of the outer container,
The spout has a spout mounting portion joined to the bag body, and a spout main body protruding outward from the spout mounting portion from the spout mounting portion,
The spout attachment portion is formed of a cylindrical body having a central portion and a thin portion that is provided on both sides of the central portion and is thinner than the thickness of the central portion, and a notch is formed at the lower end corners of the thin portions on both sides. And
Each cut-out portion is to have a multiple of the step portion,
An outer packaging container characterized in that the bag main body is provided with a positioning mark corresponding to the plurality of stepped portions of the cutout portion and positioning the bag main body and the spout together with the plurality of stepped portions of the cutout portion. And liquid storage container. An exterior container having an opening, and a liquid storage container disposed in the exterior container,
The liquid storage container includes a bag body and a spout attached to the bag body and attached to the opening of the outer container, and the spout is a spout attachment part joined to the bag body, A spout body that protrudes outward from the spout body from the spout mounting section, and the spout mounting section is provided on both sides of the central portion and thinner than the thickness of the central portion. consisting consist cylindrical body having a thin portion, the cutout portion at the lower end corner portions on both sides of the thin portion is formed, each notch may have a plurality of stepped portions,
An outer packaging container characterized in that the bag main body is provided with a positioning mark corresponding to the plurality of stepped portions of the cutout portion and positioning the bag main body and the spout together with the plurality of stepped portions of the cutout portion. And preparing a liquid storage container combination;
Inflating the liquid container in the outer container;
A content liquid filling method for an assembly of an outer container and a liquid storage container, comprising: An exterior container having an opening, and a liquid storage container disposed in the exterior container,
The liquid storage container includes a bag body and a spout attached to the bag body and attached to the opening of the outer container, and the spout is a spout attachment part joined to the bag body, A spout body that protrudes outward from the spout body from the spout mounting section, and the spout mounting section is provided on both sides of the central portion and thinner than the thickness of the central portion. consisting consist cylindrical body having a thin portion, the cutout portion at the lower end corner portions on both sides of the thin portion is formed, each notch may have a plurality of stepped portions,
An outer packaging container characterized in that the bag main body is provided with a positioning mark corresponding to the plurality of stepped portions of the cutout portion and positioning the bag main body and the spout together with the plurality of stepped portions of the cutout portion. And preparing a liquid storage container combination;
Attaching a liquid distribution nozzle to the spout;
Discharging the content liquid in the liquid storage container through the liquid distribution nozzle;
A content liquid discharging method for an assembly of an exterior container and a liquid storage container, comprising:

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